20 lines
441 B
Dart
20 lines
441 B
Dart
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enum SpeedUnit {
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kmh('km/h', 1.0),
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mph('mph', 0.621371),
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knots('kts', 0.539957);
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const SpeedUnit(this.label, this.multiplier);
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final String label;
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final double multiplier;
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double convert(double speedMps) {
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return speedMps * 3.6 * multiplier;
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}
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SpeedUnit get next {
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final values = SpeedUnit.values;
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final currentIndex = values.indexOf(this);
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return values[(currentIndex + 1) % values.length];
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}
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}
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